ultra-sonic testing

Please express the main advantages of ultrasonic testing in non-destructive testing.

请叙述非破坏试验中超音波试验的主要优点。

SHAPE (Supersonic High Altitude Parachute Experiment)

超音速高空降落伞试验

ultrasonic angle beam testing

超声波斜角探伤试验

arterial velocity scanner

超音波血流测验机〔动脉扫描〕

Supersonic or ultrasonic meter

超音速（波）测速仪

Experimental Study of Ultrasonic Plane Testing Technique for Concrete Strength;

混凝土强度的超声波平测法试验研究

Experimental Investigations of Springing Responses of an Ultra-Large Ore Carrier

超大型矿砂船波激振动模型试验研究

Effect of ultrasound on restraining frost formation on flat surface

超声波抑制平板表面结霜的试验研究

Experimental Study on Ultrasonically Assisted Turning Slender Shaft

细长轴超声波辅助振动车削试验研究

Flaw Testing of Welding Butt by Ultrasonic Guided Waves

超声导波检测对接焊缝缺陷试验研究

Model Simulation and Testing Research on Traveling Wave Type Ultrasonic Motor;

行波型超声波电机的模型仿真与试验研究

Testing Study on Relationship among P-Wave Velocity and Physico-Mechanical in Xiashu Loess;

下蜀黄土超声波波速与物理力学性质试验研究

Ghost Echo Test Analysis of Ultrasonic Inspection on Wheel Hub for Railway Locomotive

铁路机车轮箍超声波探伤的幻影波试验分析

Clinical experiment of sound frequency electric current and ultrashort wave to treat chronic laryngitis

音频电和超短波治疗慢性喉炎的临床实验

MW-USW receiver

中波－超短波收音机

Standard practice for fabrication and control of steel reference blocks used in ultrasonic inspection

超声波检验用钢对比试块的制作与校验方法

Experimental Study on Enhancing Wastewater Bio-Treatment with Low Intensity Ultrasound;

低强度超声波强化污水生物处理的试验研究

Experimental Research on Numerical Controlled Ultrasonic Machining Contour Evolution Technology;

数控展成超声波加工技术的工艺试验研究